Definition of lifespan in English:


Line breaks: life|span
Pronunciation: /ˈlʌɪfspan


  • The length of time for which a person or animal lives or a thing functions: the human lifespan
    More example sentences
    • As humans lengthened lifespans with better nutrition and hunting skills, childhood also lengthened.
    • They are slow-breeding and long-lived animals, achieving lifespans of 70 years or so.
    • I suggested that extending human lifespans might lead to extended creativity.

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Pronunciation: ˌastrəˈgāSHən
(in science fiction) navigation in outer space